Using Java to manipulate TigerGraph
To operate TigerGraph using Java, the following steps need to be taken:
1. Import the Java client library of TigerGraph. You can add it to the project through the following Maven dependencies:
<dependency>
<groupId>com.tigergraph.client</groupId>
<artifactId>tigergraph-java-client</artifactId>
<version>2.4.0</version>
</dependency>
2. Create a TigerGraph client object and connect to the TigerGraph instance. The following is a complete example code:
import com.tigergraph.client.TigerGraphJavaClient;
public class TigerGraphExample {
public static void main(String[] args) {
String ipAddress = "127.0.0.1";
String username = "tigergraph";
String password = "tigergraph";
String graphName = "myGraph";
TigerGraphJavaClient tg = TigerGraphJavaClient.newConnection(ipAddress, username, password, graphName);
boolean connected = tg.connect();
if (connected) {
System.out.println("Connected to TigerGraph instance");
//Data insertion
String insertQuery = "INSERT VERTEX Person (PRIMARY_ID person_id, name) VALUES '1', 'Alice'";
tg.gsql(insertQuery);
//Data modification
String updateQuery = "UPDATE VERTEX Person SET age = 25 WHERE name == 'Alice'";
tg.gsql(updateQuery);
//Data Query
String selectQuery = "SELECT name, age FROM Person WHERE name == 'Alice'";
String response = tg.gsql(selectQuery);
System.out.println("Response: " + response);
//Data deletion
String deleteQuery = "DELETE VERTEX Person WHERE name == 'Alice'";
tg.gsql(deleteQuery);
} else {
System.out.println("Failed to connect to TigerGraph instance");
}
tg.disconnect();
}
}
In the example code above, I have demonstrated how to perform data insertion, modification, query, and deletion operations. Firstly, we use the 'newConnection' method to create a TigerGraph client object. Then, we use the 'connect' method to connect to the TigerGraph instance. If the connection is successful, we can execute GSQL queries and send GSQL query statements through the 'gsql' method for operation. Finally, use the 'disconnect' method to disconnect from the TigerGraph instance.
Please note that the above example code is only used to illustrate how to use Java to manipulate TigerGraph, and it is assumed that you have already created a graph named 'myGraph' and related vertices and edges in the TigerGraph instance. In practical applications, you need to write corresponding GSQL query statements based on your data model and requirements.
